Improper Use; Product Description; Design - Wilo Padus UNI Einbau- Und Betriebsanleitung

3.2

Improper use

DANGER
Explosion due to pumping of explosive fluids!
Pumping of highly flammable and explosive fluids
(gasoline, kerosene, etc.) in pure form is strictly pro-
hibited. There is a risk of fatal injury due to explosion!
The pumps are not designed for these fluids.
DANGER
Danger due to fluids hazardous to health!
If the pump is used in fluids hazardous to health, de-
contaminate the pump after dismantling and before
carrying out any other work! There is a risk of fatal in-
jury! Observe the specifications in the work regula-
tions! The operator must make sure that the person-
nel have received and read the work regulations!
CAUTION
Use in biogas applications forbidden!
The fluids in biogas applications are highly aggressive.
These fluids will destroy the pump. Use with these
fluids is strictly forbidden!
The submersible pumps must not be used for pumping
of:
▪ Untreated sewage
▪ Sewage containing faeces (as per EN 12050-1)
▪ Drinking water
▪ Fluids containing hard components (such as stones,
wood, metal, etc.)
▪ Fluids containing high quantities of abrasive contents
(e.g. sand, gravel).
Intended use requires compliance with this manual. Any
other use is regarded as non-compliant with the inten-
ded use.
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Product description

4.1

Design

Submersible drainage pump as a submersible monobloc
unit for intermittent operation for wet well installation.
Installation and operating instructions Wilo-Padus UNI
Product description
Fig. 1: Overview
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4
5
6
4.1.1
4.1.2
4.1.3
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5
Handle/attachment point
Motor housing
Hydraulics housing
Pressure port
Strainer
Connection cable
Hydraulics
Centrifugal hydraulics with open, multi-channel impeller
and vertical threaded connection on the pressure side.
The hydraulics are not self-priming, in other words, the
fluid must flow in either automatically or with supply
pressure.
Motor
The drive versions used are single-phase current and
three-phase current surface-cooled motors. The motor
is cooled by the fluid around it. The waste heat is trans-
ferred directly to the fluid via the motor housing. The
motor may emerge during operation.
With single-phase current motors, the operating capa-
citor is integrated in the motor. The connection cable is
available in the following versions:
▪ Single-phase current version:
– With shockproof plug
– With shockproof plug and fitted with a float switch
▪ Three-phase current version:
– With bare cable end
– With CEE plug and fitted with a float switch
Seal
The seal for the fluid and the motor compartment is
made via two mechanical seals. The sealing chamber
between the mechanical seals is filled with medical white
oil.
en
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3
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